python-pip: upgrade to version 8.1.2

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

lang/python-pip/Makefile

@@ -8,14 +8,15 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=python-pip
-PKG_VERSION:=8.1.1
+PKG_VERSION:=8.1.2
 PKG_RELEASE:=1
 
 PKG_SOURCE:=pip-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=https://pypi.python.org/packages/source/p/pip/
-PKG_MD5SUM:=6b86f11841e89c8241d689956ba99ed7
+PKG_SOURCE_URL:=https://pypi.python.org/packages/e7/a8/7556133689add8d1a54c0b14aeff0acb03c64707ce100ecd53934da1aa13/
+PKG_MD5SUM:=87083c0b9867963b29f7aba3613e8f4a
 
-PKG_BUILD_DIR:=$(BUILD_DIR)/pip-$(PKG_VERSION)
+PKG_BUILD_DIR:=$(BUILD_DIR)/python-pip-$(PKG_VERSION)
+PKG_UNPACK=$(HOST_TAR) -C $(PKG_BUILD_DIR) --strip-components=1 -xzf $(DL_DIR)/$(PKG_SOURCE)
 PKG_USE_MIPS16:=0
 
 include $(INCLUDE_DIR)/package.mk